Hi Forum,
I am creating a buffer object as follows and i need to access the id of the
buffer object for later references , but i am getting ZERO value:
Code:
.............................
............................
osg::VertexBufferObject* vbo =
_m_clGeomRef->getOrCreateVertexBufferObject();
if(!vbo)
{
osg::notify(osg::FATAL)
<< __FUNCTION__ <<": " << __LINE__
<< _m_clGeomRef->getName() << ": no buffer object found."
<< std::endl;
return false;
} // END OF - !vbo
unsigned int contextID =
osgCompute::GLMemory::getContext()->getState()->getContextID();
//compile vertex buffer
osg::GLBufferObject *glBO = vbo->getOrCreateGLBufferObject( contextID
);
if( !glBO )
{
osg::notify(osg::FATAL)
<< __FUNCTION__ <<": " << __LINE__ << ": "
<< _m_clGeomRef->getName() << ": no GL buffer object found."
<< std::endl;
return false;
} // END OF - !glBO
if( glBO->isDirty())
{
osg::GLBufferObject::Extensions* ext =
osg::GLBufferObject::getExtensions(
osgCompute::GLMemory::getContext()->getState()->getContextID(),true);
if(!ext)
{
osg::notify(osg::FATAL)
<< __FUNCTION__ <<": " << __FUNCTION__ << ": "
<< _m_clGeomRef->getName() << ": cannot find required
extensions to compile buffer object."
<< std::endl;
return false;
}
//the following function call the glBufferData()
glBO->compileBuffer();
//unbind the buffer objects
ext->glBindBuffer(GL_ARRAY_BUFFER_ARB,0);
ext->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB,0);
} // END OF - glBO->isDirty()
//avoid copy operation during osgCompute::MAP_HOST
memory._m_clLastModifiedCount.clear();
for( unsigned int d = 0; d < vbo->getNumBufferData(); ++d )
memory._m_clLastModifiedCount.push_back(
vbo->getBufferData(d)->getModifiedCount());
GLuint objectid = glBO->getGLObjectID();
...........................
..........................
In debuffer i found that objectid is always zero.
Where should i look into to correct this issue ?
Thanks
Sajjadul
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=56701#56701
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